"Wayne King" <wmkingty@gmail.com> wrote in message <ipr8g8$jch$1@fred.mathworks.com>...> "Chaitanya Vichare" <cavichare@gmail.com> wrote in message <ipqs8d$34c$1@fred.mathworks.com>...> > Dear Reader> > Ideally white noise has infinite frequencies but what about the white noise block in simulink? How to get its frequency contents? Does it have infinite or finite frequencies?> > Please inform me.> > Thank You> > Hi Chaitanya, The mathematical model for a white noise sequence has a continuous spectrum (what you are calling infinite frequencies) because the sequence is doubly-infinite. Furthermore, the PSD is perfectly flat and the autocorrelation is identically zero at all nonzero lags, you must realize that anything implemented in a computer can only approximate that.> > When you say "white noise block" in Simulink, are you actually referring to the "Band-Limited White Noise Block"?> > Wayne

Thanks WayneYes I want to mean "Bandlimited white noise", but I can not finding the limit of spectrum. Please tell me how to find itOnce again Thank You